So I have noticed that there are two situations in WoW where I usually get a major lag spike, even tho WoW usually runs quite smoothly for me.
1. When Wintergrasp ends, more precisely just as its ABOUT to end. I get a major spike (second or two) and then hear the win/loss music and so on.
2. When i spread my diseases with pestilence on my dk to a large amount of mobs (10+) get a spike of 1-2 seconds.
I also tend to have a rather choppy fps in Wintergrasp when there's a lot of action going on, when compared to my girlfriends laptop (which is less powerful) seems to run it smoother.
SPECS: AMD Athlon 64 X2 Dual Core Processor 3800+, 2,0GB RAM, Radeon X1950 Pro
I already tested if this happens completely without addons, and it did. So i doubt it's addon related.
Any help would be appreciated.